Residential foundation waterproofing on the Rive-Sud: elastomer membrane or sprayed polyurea. A technician at your home within 48 hours. We treat the cause, not the symptom. Free quote.
Excavation
French drain
Crack repair
You’ve seen a crack on the foundation wall. Or water seeping in after heavy rain. Your kids play downstairs, you’re renovating soon, and you want to know exactly what you’re getting into before going further.
Foundation waterproofing is what keeps water from finding its way inside and cuts off the dampness. We pinpoint the source, work from the outside, and seal it properly. Once. Not a temporary patch — a solution that lasts.
We inspect, we diagnose, we act. Every week you wait is water working against you. We stop that now.
This is the traditional method, used in the industry for years. The elastomer membrane is applied to the foundation, then covered with a Delta MS drainage panel that protects the membrane during backfilling and helps water flow toward the drain.
It’s a reliable, affordable and well-understood solution. It suits most common residential situations.
What you should know: it depends on careful application. A poorly prepared surface or a badly installed membrane can compromise the seal over the long term. It’s still a good option, but it has its limits in more demanding conditions.
Polyurea is sprayed directly onto the foundation, creating a continuous barrier with no seams, no fasteners, no weak point. It bonds to every surface — poured concrete, concrete block or rubble stone — and cures in seconds.
What sets it apart: it stays rigid against ground movement, withstands deep cold and Quebec’s freeze-thaw cycles, and structurally reinforces the foundation on top of waterproofing it. Its lifespan exceeds 50 years.
It’s the option we recommend when you want to settle this once and for all, without coming back to it.
I have marks on my foundation walls.
A white mark, a damp stain, a musty smell that keeps coming back. It’s not harmless. These are the first signs that infiltration is under way, often for longer than you think.
My basement is damp, but nothing’s leaking.
A basement that “sweats” without water actually running in is a foundation that has been working against water for a while. Over the years the concrete deteriorates, and the longer you wait, the more the damage adds up.
I want to renovate my basement
Investing in a finished basement without checking the condition of the foundation is a gamble. A waterproof membrane installed now is what protects your investment.
A waterproofed foundation means a home that stands up to freeze-thaw cycles, groundwater pressure, and the years.
No infiltrating dampness, no mould, no stale air. A watertight foundation means a healthy environment for the whole family.
A well-installed membrane means a sale that negotiates upward, not a condition that sinks the offer.
Every year you wait, the damage advances. Waterproofing now means avoiding a major renovation in three years.
The foundation is the one part of your home that doesn’t forgive waiting. Here’s why acting fast is the most cost-effective investment you’ll make this year.
From the outside. It’s the only way to treat the cause rather than the symptom: we pinpoint the source of the infiltration, excavate along the foundation, and apply the membrane directly to the wall before backfilling. A solution applied from the inside only manages the water once it’s already in.
Yes, always. Cracks are repaired and sealed before the membrane goes on — it’s included in the waterproofing work. Putting a membrane over an untreated crack leaves a weak point in a system that’s supposed to be watertight.
It depends on the method and the conditions. The sprayed polyurea membrane cures in seconds and withstands deep cold: it’s better suited to a Quebec winter than the traditional elastomer membrane, which is more sensitive to temperature and humidity during application. A technician comes within 48 hours to assess whether your work can be done now.
It depends on the product. The elastomer membrane covered with a Delta MS panel is a proven, reliable solution for most residential situations. The sprayed polyurea membrane forms a continuous barrier with no seams or weak points, withstands freeze-thaw cycles, and exceeds 50 years of lifespan — it’s the recommended option to settle this once and for all.
